Smoke-cleaner.



PATENTED JULY- 3, 1906.

J.. L., MATTHEWS. SMOKE om-zxftural APPLIOATIONT FILED I'BB.13. 1906.

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PATBNTED JULY 3, 1906.

J. L. MATTHEWS. SMOKE CLEANER.

APPLICATION FILED 133.13. 1906.

2 SHEETS-SHEET 2.

UNITED STATES PATENT OFFICE.

OF BALTIMORE, MARYLAND.

MARYLAND, ASSIGNOR OF ONE- ONE-THIRD TO JOHN ROESSER,

SMOKE-CLEANER,-

Specication of Letters Patent. .Y

Patented July 3, 1906.

Application filed yIebinary 13,11906. Serial No. 300.865.

To @ZZ whom it may concern:

Be it known that I, JOHN L. MATTHEWS, a citizen of the United timore city, State of Maryland, have invented certainv new and useful Improve?.

nfents in Smoke-Cleaners, of lowing is a specification.

My invention relates `to an improvement in a smoke-cleaning ject being,

which the `folto do away with expensive stacks and chimneys on account of the great height required r and to provide for an equal or adequate draft` tical section, of my invention organized inI operative and demonstrable form. Fig. 2 is a sectional view of a-modiiied form of a downpipe.

A represents a chimney or stack of ordinary form and of suitable height. On top is a hood or bonnet 1, which hermetically seals the stack or chimney at that point. This hood or bonnet is preferably made of sheetiron and is provided with the elbow 2 for theV inlet and outlet of the smoke.

The hood is adapted to be secured in place on the stack or chimney by bands, straps, or other means. (Not shown.) Smoke from the furnace enters at any convenient point-say through a pipe13`and is discharged into the chimney or stac i.

elb'ow 2 of the hood and extends straight downwardly or in the form of a coil- 5, as.

States, residing at Bal-' device, the primary ob"-` as the name implies, to cleanse the smoke from any stack or chimney of any v c height, and it is a purpose of my invention The device is perfectly safe as well- A down-pipe 4 is fastened to theV ystack 7 of fsuitable dimensions and height, which is open at the top, as designated by 8. l`The tank 1s made with a solid bottom and in ysuch dimensions as requiredhsay from ten to fifty inches in diameter and from four to ten feet in height, according to the size of the .stack-and inthe bottom of the tank there should becontained several inches of water. .(Not shown.) It is provided -at or near the bottomwith a smalldoor l9 in the side, out through Which-the debris, dirt, or sediment that may accumulate may be raked. An outlet-pipe 1 1 of -proper dimensions is located a suitable distance above the bottom of the tank-say just above the water medium- (not shown) for draining off the excess water into the ygutter or elsewhere, which may form in the tank byreason of condensing the exhaust-steam therein. Afsteam-pipe 12 from the boiler extends alongside the stack or chimney and into thehood 1 and terminates with a nozzle`l3 insideof the elbow 2, this nozzle being perforated to spray steam into the pipe` 4. A second `exhaust-steam pipe 15, which is adapted .to facilitate in the operation and in the performance of l'the functions of m improved apparatus, extends into the tank at a point near-the bottom and is extended Within `the'tank to a point about the center thereof and then extends upward a suitablel distance abovel the point where. the downpipe 4 enters. On theend of the pipe 15 is a nozzle 16 similar to thel onev shown in the hood. While the nozzle is provided and shown in both instances, it-can be dispensed With Without iaecting the working of the apparatus.

The action of the steam on the smokeas it passes down throughV the pipe 4 to the tank C is to wash out the carbon and other visible matter, and as the smoke enters the tank it willbe again acted upon by the steam from the spray therein contained and again washed, and the carbonwillbe taken up by the Water in the bottom thereof, and when this greasy water reaches a-certain height it will pass out of the tank through the overiiow-pipe 11 to the gutter or elsewhere.

By reason of the exhaust-steam being forced into the tank through the pipe 15, the heavy carbon in the smoke in the tank is precipitated down into the Water (not shown) in the bottom of the tank, While the gases pass out through the opening 8 in the stack on the top of the tank, this opening being of sufficient size and the stack of sufficient height to afford an adequate draft. By reason of the outlet ofthe pipe 15 discharging the exhauststeam at the point mentioned, which is directly below the opening in the top of the tank, a forced draft is to a certain extent created.

A series of boilers of separate plants may be supplied with the apparatus, and the different exhaust-pipes run to one large storagetank, and the smoke is acted upon in the same manner as in the individual plant.

Suitable valves 17 and 18 in the pipes 12 and 15 control the discharge of steam therethrougn, and 6, 10, and 14 are L connections thereon.

It is evident that slight changes might be resorted to in the form and arrangement of the several parts described without departing from the spirit and scope of my invention, and hence I do not wish to limit myself to the exact construction herein set forth; but,

Having fully described my invention, what I claim, and desire to secure by Letters Patent, is-- 1. The combination with a chimney or stack and a smoke tank or holder provided with an outlet at the top of a smoke-pipe leading from the stack and discharging into the tank or holder, a steam-pipe provided with a nozzle discharging into the upper end of the smoke-pipe, another steam-pipe provided with a similar nozzle discharging upwardly in line with the outlet within the smoke tank or holder above the point where the smoke-pipe discharges therein substantially as described.

2. The combination with a chimney or stack and a smoke tank or holder provided with an outlet at the top, of a circuitous smoke-pipe leading from the chimney or stack and discharging within the tank or holder, aV

steam-pipe provided with a nozzle spraying and discharging into the upper end of the smoke-pipe, of a steam-pipe provided with a similar nozzle discharging upward in line with the outlet within the smoke tank or holder above the point where the smoke-pipe discharges therein substantially as described. 3. The combination with a chimney or stack and a smoke tank or holder, of a smokepipe leading from the chimney or stack and discharging within the holder, a hood or bonnet hermetically sealing the top of the chimney or stack and inclosing a portion of the smoke-pipe, a steam-pipe provided with a discharge-nozzle discharging steam within the smoke-pipe substantially as described.

L1. The combination with a chimney or stack and a smoke tank or holder, of a smokepipe for conducting the smoke from the chimney or stack to the tank or holder, a hood or bonnet hermetically sealing the top of the smoke-stack and inclosing a portion of the smoke-pipe, a steam-pipe discharging within the smoke-pipe inducing the downward current of the smoke and gases through the smoke-pipe and a steam-pipe discharging within the tank or holder for inducing the precipitation of the heavy carbon contained in the smoke substantially as described.

5. The combination with a chimney or stack and a smoke tank or holder, of a smokepipe for conducting the smoke from the chimney or stack to the. tank or holder, a hood or bonnet hermetically sealing the top of the smoke-stack and inclosing a portion of the smoke-pipe, a steam-pipe discharging within the smoke-pipe inducing the downward current of the smoke and gases through the smoke-pipe and a steam-pipe discharging wi thin the tank or holder for inducing the precipitation of the heavy gases contained in the smoke, of an open stack on the top of the tank or holder, adoor in the side near the bottom thereof for removing the debris and a drain-pipe 11 for draining off the excess of water substantially as described.

6. The combination with a stack or chimney, a smoke tank or holder, and a smokepipe leading from one to the other, of a hood or bonnet hermetically sealing the upper end of the stack or chimney and inclosing a portion of the smoke-pipe, of a steam-pipe extending within the elbow, of an elbow connecting the smoke-pipe with the hood, a nozzle on the steam-pipe for directing the smoke through the smoke-pipe to the tank or holder, and means within the tank or holder for precipitating the carbon contained in the smoke and. means within the top of the tank to allow the escape of the gases, substantially as described.

7. The combination with a smoke stack or chimney and a smoke tank or holder, of a spiral smoke-pipe leading from one to the other, a hood or bonnet hermetically sealing the top of the smoke-stack and inclosing a portion of the smoke-pipe, and means for discharging steam into the smoke-pipe, substantially as described.

In testimony whereof I affix my signature in presence of two witnesses.

JOHN L. MATTHEWS.

Witnesses:

E. WAL'roN BREWINGTON, MARY M. MAGRAW.

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